Parent: Tyrannidae (Tyrant flycatchers)

└─ Zimmerius

└─── Zimmerius bolivianus (Bolivian tyrannulet)

└─── Zimmerius chrysops (Golden-faced tyrannulet)

└─── Zimmerius cinereicapilla (Red-billed tyrannulet)

└─── Zimmerius gracilipes (Slender-footed tyrannulet)

└─── Zimmerius vilissimus (Paltry tyrannulet)

└─── Zimmerius villarejoi (Mishana tyrannulet)

└─── Zimmerius viridiflavus (Peruvian tyrannulet)